It would have looked like Fatah accepting the help of Israel and the West to crack down on militants in the West Bank and Gaza. It would look like the palestinian population not voting for Hamas over Fatah. It would look like an end to rocket attacks and other violence.

Of all of these things, the only thing that's possible is the last item on your list, since that's the only one that doesn't require time travel.

Hamas will likely clamp down on its militant factions following whatever truce both sides strike in Cairo.